What kind(s) of intermolecular forces exist in the compounds given below? (a) ch3ch2ch2ch2ch3(l) dispersion forces dipole-dipole forces hydrogen bonding (c) h2co(l) dispersion forces dipole-dipole forces hydrogen bonding (b) ch3ch2oh(l) dispersion forces dipole-dipole forces hydrogen bonding (d) o2(l) dispersion forces dipole-dipole forces hydrogen bonding

(a) CH3CH2CH2CH2CH3(l)

(b) CH3CH2OH(l)

(c) H2CO(l)

(d) O2(l)

Explanation:

Dispersion forces are those forces that occur between two non polar molecules.They form the weakest bonds.Here electrons of one molecule is attracted to the nucleus of the other molecule. Example are;

Dipole-Dipole interaction happens when two polar molecules interact.Positive charges in one molecule is attracted to negative charge of another molecule.Examples

Hydrogen bonding are created when an hydrogen atom bonded to an electronegative atom is attracted to a another electronegative atom.Example is the hydrogen bond between oxygen atom and hydrogen is water (H₂O).

Inter-molecular are forces that hold the molecules of a substance together in a particular state of matter.

Inter-molecular forces are forces that act between the particles of a substance are responsible for the dissolution of one substance in another. The kind of inter-molecular interaction present depends on the nature of the substance.

The inter-molecular forces present in the following substances are listed below;

CH3CH2CH2CH2CH3(l)  and O2(l) are non polar substances hence the molecules only contain have dispersion forces acting between them. H2CO(l) is a polar molecule so dipole-dipole forces  are present in addition to dispersion forces. In CH3CH2OH(l) , hydrogen bonding is also present due to the O - H bond.

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